Seiichi meets the extremely eccentric students of F-class and gets stuck playing the straightman before the class' old teacher, Beatrice, suggests mock battles so Seiichi can assess their abilities.
Hmph. Obviously it's because 
your answers were inappropriate.
Hm. Das liegt daran,
dass deine Antworten Unsinn waren.
Hmph. Obviamente porque suas
respostas foram inadequadas.